Dorman 984-587 HVAC Blower Motor Resistor

Dorman 984-587 HVAC Blower Motor Resistor

Restore proper cabin airflow control with this direct replacement HVAC blower motor resistor from Dorman. Built for select Mazda 3 and Mazda 3 Sport models, Dorman 984-587 addresses blower speed control issues tied to a failed resistor and helps return heating and cooling operation to normal.

• Direct replacement blower motor resistor for select vehicles
• Designed to match original equipment operation and performance
• 1 rectangle connector with 4 female terminals
• Blade terminal type for a secure electrical connection
• 2 bolt holes for mounting
• Package includes the blower motor resistor and instructions
• Cross-references BBM461B15 and JA1833 for the same application

Detailed Product Information

Dorman 984-587 is an HVAC blower motor resistor engineered for vehicles that use a manual temperature control system. It is built as a direct replacement for the original resistor used on 2010-2013 Mazda 3 and 2010-2013 Mazda 3 Sport models without auto temperature control. If your Mazda 3 blower motor only works on certain speeds or stops responding altogether, this part restores the resistor function that regulates fan speed through the HVAC system.

This part number, 984-587, is intended for a straightforward OE-style repair on Mazda 3 and Mazda 3 Sport applications. The connector layout, terminal count, and mounting style are specified to align with the original component design for the listed vehicles.

Common Problems This Part Addresses

• Blower motor works on only one speed
• HVAC fan speeds stop responding
• No cabin airflow from the vents
• Intermittent heater or A/C blower operation
• Burnt or heat-damaged blower resistor failure

Installation Notes and Tips

Verify that the vehicle is a 2010-2013 Mazda 3 or 2010-2013 Mazda 3 Sport without auto temperature control before ordering. Confirm the connector shape, terminal count, and mounting points match the original part. Inspect the blower motor connector and surrounding wiring for heat damage before installing the new resistor. Dorman 984-587 includes instructions; mounting hardware and wiring harness are not included.

Quality Assurance

Dorman manufactures replacement components to match original equipment fit and function for specific vehicle applications. This blower motor resistor is built for the listed Mazda fitment and is supplied with installation instructions for service support.